Report Generated 04/01/2022 at 0714

Page Description

2 - Mean Daily Water Temperature, Release Flow Rates and Air Temperatures with Monthly Averages

3 - Redding 10-Day Forecasted Air Temperatures

4 - Sacramento River Mean Daily Water Temperature, Air Temperature and 10-Day Forecasted Air Temperature Plot

- Water Temperature Measuring Station Details

- Temperature Control Point Details

5 - Shasta Lake Isothermobaths & Cold Water Pool Statistics

14 - Trinity Lake Isothermobaths & Cold Water Pool Statistics

23 - Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

x - TCD Configuration (External Link)

All Data in this Report is Preliminary and Subject to Change

Northern CVP Water Temperature Report

March - 2022
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Feb 2914 56 3282 49.7 52.9

03/01 49.0 48.5 # - 49.0 49.3 49.8 50.7 51.7 52.0 48.5 46.4 47.4 48.7 2796 47 3262 58.0 54.4 57.1

03/02 49.0 48.5 # - 49.1 49.4 49.9 50.8 52.1 52.7 48.3 46.5 47.2 48.6 2732 109 3260 57.0 53.3 56.5

03/03 49.1 48.6 # - 49.3 49.4 49.6 50.7 51.8 52.4 48.1 46.5 47.1 48.5 2889 75 3243 56.5 53.2 53.1

03/04 49.2 48.8 # - 49.3 49.5 50.0 50.7 51.5 51.9 48.2 46.7 46.9 48.0 2903 74 3244 55.0 53.5 54.3

03/05 49.4 48.6 # - 49.2 49.2 49.3 50.2 51.3 51.9 47.8 46.6 45.2 46.5 3151 75 3240 51.0 48.5 49.0

03/06 49.4 48.8 # - 49.2 49.3 49.6 49.8 50.3 51.1 47.5 46.9 44.4 45.9 2847 75 3241 49.5 48.2 51.0

03/07 49.2 48.8 # - 49.2 49.4 49.9 50.3 50.7 51.0 47.5 47.2 45.3 45.7 2696 75 3245 56.0 54.1 55.3

03/08 49.6 48.9 # - 49.4 49.6 50.1 50.7 51.3 51.5 47.8 47.4 45.8 ? 46.4 2837 75 3237 55.5 53.2 57.7

03/09 49.7 48.9 # - 49.5 ? 50.1 50.6 51.4 52.3 52.5 48.3 47.6 46.6 47.5 2921 74 3237 60.0 57.8 59.1

03/10 50.1 49.3 # - 49.6 ! - 50.0 50.8 51.5 52.2 47.9 47.7 46.7 47.7 3100 74 3244 54.5 53.8 54.1

03/11 49.5 49.1 # - 49.7 ? 50.0 50.4 50.7 51.1 51.7 47.9 47.9 46.3 47.3 2952 74 3242 52.5 49.0 52.2

03/12 49.4 48.8 # - 49.7 49.9 50.3 51.0 51.6 51.9 47.9 48.0 47.0 47.1 2903 74 3245 52.0 52.1 54.3

03/13 49.0 48.2 # - 49.9 50.1 50.7 51.7 52.5 52.7 48.7 48.4 48.1 48.7 3249 74 3240 54.0 56.1 55.5

03/14 49.4 48.5 # - 50.0 50.4 51.0 52.1 53.3 53.9 49.0 48.6 48.8 49.8 3137 74 3233 56.5 55.4 57.2

03/15 49.2 48.6 # - 49.6 ? 50.1 50.8 52.4 54.0 54.2 49.2 48.8 50.3 51.2 3126 74 3221 57.0 55.9 56.3

03/16 49.8 49.2 # - 49.6 50.0 50.8 52.2 53.4 54.3 49.3 48.8 49.3 50.3 2905 74 3224 59.5 54.5 57.1

03/17 50.3 49.4 # - 49.7 50.1 50.8 52.5 53.7 54.4 49.2 48.8 49.5 50.1 2929 79 3230 58.0 53.9 55.1

03/18 50.4 49.5 # - 49.9 50.2 50.9 52.4 53.6 54.4 49.3 49.0 49.4 50.4 3035 73 3217 57.0 54.8 57.8

03/19 49.8 49.3 # - 50.1 50.3 51.0 52.7 54.0 54.4 49.2 49.1 50.2 51.0 3561 73 3221 54.0 54.2 55.8

03/20 50.2 49.6 49.2 50.4 50.6 51.0 51.9 52.8 53.7 48.9 49.1 48.1 49.5 2232 73 3252 56.5 52.6 54.3

03/21 51.1 50.0 49.3 50.5 51.0 52.0 53.2 54.0 54.2 49.9 49.6 49.7 50.3 2880 62 3263 67.0 61.5 63.8

03/22 51.3 50.3 49.0 50.9 51.5 52.7 54.9 56.5 56.7 50.8 49.9 52.1 52.7 2994 49 3261 74.0 70.4 69.0

03/23 50.7 50.2 49.2 51.1 51.8 53.0 55.6 57.7 58.5 50.9 49.9 53.2 ? 53.9 2888 75 3264 67.5 64.8 66.3

03/24 50.5 50.2 49.2 51.6 52.0 53.0 55.5 57.9 59.0 50.6 50.0 52.4 53.2 2850 86 3256 67.5 64.4 67.1

03/25 50.7 49.6 49.4 51.7 52.3 53.5 55.8 57.7 58.8 50.9 50.5 53.3 54.0 3079 74 3260 65.5 62.3 64.3

03/26 51.1 49.7 49.4 51.7 52.3 53.3 55.6 57.7 58.8 50.5 50.5 52.6 54.2 2908 75 3259 63.5 60.6 63.3

03/27 50.2 49.7 49.4 51.3 51.9 52.8 55.2 57.2 58.3 50.4 50.6 51.8 53.1 2524 75 3259 61.5 59.0 60.3

03/28 50.5 49.7 49.3 51.4 51.7 52.5 54.4 56.2 57.4 50.1 50.7 52.3 53.2 3379 75 3252 57.5 56.4 56.5

03/29 50.5 ! - 49.4 51.5 52.2 53.2 54.8 56.0 56.7 50.6 50.6 52.7 54.1 2687 74 3258 62.0 59.6 60.4

03/30 50.6 49.7 49.4 51.3 51.9 53.0 55.3 57.3 57.8 50.5 50.3 53.4 54.2 3579 75 3252 60.5 57.4 56.9

03/31 51.5 50.1 49.3 51.6 52.0 52.8 54.6 56.3 57.5 50.4 50.0 52.5 53.8 3110 75 3259 63.5 59.0 60.3

Mar 2961 74 3246 56.2 57.8

91779 2290 100621

Legend Notes 182040 4542 199578

? = 1-9 hours of data missing (Average includes estimations) 1 Temperatures are weighted averages based on individual penstock flow and temperature

! = 10 or more hours of data missing (Average not calculated) Highlighted cells in the TCD column indicate a TCD change was made on that day

# = Station out of service 2 Current Sacramento River control point (see page 4 for more details)

↑ = Record high air temperature

↓ = Record low air temperature

 = Monthly Averages

50.0 49.2 49.3 50.6 51.2 52.6

D

A

T

E

48.8 48.2

SAC CCR 2 TCD1 SHD SPP1 KWK

- 48.5 48.6 48.8 49.0 49.2

Mean Daily Air 

Temperatures (°F)

RDD

53.9

Total CFS

50.2 58.7

Mean Daily 

Release (CFS)

NFH

43.4

Mean Daily Water Temperatures (°F)

45.9

BND IGO

50.2

BSF

53.8

Total AF

49.6 46.9

RDB

54.5 49.2

LWS

48.7 49.2

DGC

42.9

2
↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg ↓ ↑ Avg

03/01 38 73 55.5 45 73 59.0 45 69 57.0 44 60 52.0 35 62 48.5 34 60 47.0 32 63 47.5 34 68 51.0 41 69 55.0 43 62 52.5 38 65 51.5 41 62 51.5

03/02 44 72 58.0 43 74 58.5 45 66 55.5 43 59 51.0 37 60 48.5 33 65 49.0 36 69 52.5 37 70 53.5 46 72 59.0 40 71 55.5 41 73 57.0 47 72 59.5

03/03 43 71 57.0 52 67 59.5 45 61 53.0 34 60 47.0 32 64 48.0 35 71 53.0 34 70 52.0 38 68 53.0 45 70 57.5 38 73 55.5 43 70 56.5 44 73 58.5

03/04 51 62 56.5 51 58 54.5 35 63 49.0 33 66 49.5 36 69 52.5 36 74 55.0 36 71 53.5 36 72 54.0 47 76 61.5 46 68 57.0 46 68 57.0 46 68 57.0

03/05 46 64 55.0 40 64 52.0 33 67 50.0 35 71 53.0 38 76 57.0 38 69 53.5 35 69 52.0 35 73 54.0 45 74 59.5 47 70 58.5 46 72 59.0 43 74 58.5

03/06 39 63 51.0 34 66 50.0 37 71 54.0 38 75 56.5 37 70 53.5 35 69 52.0 35 74 54.5 40 68 54.0 43 65 54.0 39 66 52.5 43 65 54.0 43 67 55.0

03/07 33 66 49.5 42 71 56.5 38 73 55.5 37 67 52.0 34 67 50.5 33 72 52.5 36 69 52.5 40 69 54.5 49 64 56.5 44 65 54.5 45 71 58.0 48 71 59.5

03/08 41 71 56.0 38 73 55.5 38 68 53.0 34 66 50.0 34 74 54.0 36 70 53.0 40 68 54.0 41 69 55.0 48 65 56.5 45 69 57.0 43 70 56.5 42 70 56.0

03/09 36 75 55.5 50 70 60.0 38 67 52.5 34 73 53.5 36 71 53.5 40 70 55.0 43 67 55.0 45 66 55.5 45 70 57.5 41 72 56.5 43 68 55.5 41 69 55.0

03/10 47 73 60.0 47 68 57.5 33 73 53.0 36 69 52.5 39 67 53.0 43 69 56.0 47 68 57.5 40 74 57.0 45 72 58.5 44 71 57.5 43 69 56.0 45 63 54.0

03/11 40 69 54.5 33 72 52.5 35 69 52.0 41 66 53.5 41 68 54.5 47 66 56.5 39 72 55.5 40 72 56.0 48 70 59.0 46 62 54.0 41 66 53.5 40 72 56.0

03/12 32 73 52.5 35 69 52.0 39 64 51.5 41 65 53.0 47 66 56.5 39 72 55.5 42 71 56.5 42 71 56.5 46 63 54.5 43 62 52.5 45 68 56.5 44 74 59.0

03/13 33 71 52.0 45 64 54.5 40 66 53.0 47 65 56.0 39 72 55.5 42 72 57.0 41 74 57.5 46 64 55.0 47 67 57.0 46 80 63.0 52 79 65.5 51 77 64.0

03/14 43 65 54.0 45 69 57.0 47 66 56.5 39 73 56.0 41 74 57.5 41 72 56.5 46 61 53.5 36 65 50.5 51 66 58.5 48 79 63.5 49 78 63.5 47 78 62.5

03/15 43 70 56.5 53 67 60.0 39 73 56.0 43 71 57.0 40 72 56.0 45 60 52.5 34 64 49.0 36 72 54.0 51 77 64.0 54 81 67.5 51 79 65.0 49 78 63.5

03/16 50 64 57.0 46 73 59.5 43 68 55.5 40 72 56.0 45 58 51.5 36 68 52.0 41 78 59.5 50 86 68.0 54 83 68.5 54 83 68.5 51 80 65.5 49 78 63.5

03/17 44 75 59.5 47 70 58.5 38 72 55.0 44 60 52.0 35 67 51.0 41 79 60.0 51 88 69.5 49 87 68.0 51 82 66.5 51 75 63.0 48 70 59.0 48 66 57.0

03/18 45 71 58.0 43 72 57.5 46 58 52.0 34 67 50.5 41 77 59.0 51 86 68.5 51 86 68.5 49 83 66.0 53 79 66.0 46 65 55.5 49 67 58.0 43 74 58.5

03/19 41 73 57.0 53 59 56.0 36 67 51.5 40 79 59.5 51 87 69.0 58 89 73.5 57 85 71.0 55 78 66.5 50 77 63.5 43 69 56.0 50 71 60.5 47 69 58.0

03/20 46 62 54.0 44 68 56.0 42 79 60.5 53 87 70.0 58 86 72.0 54 84 69.0 52 83 67.5 51 79 65.0 45 63 54.0 50 59 54.5 45 66 55.5 43 69 56.0

03/21 43 70 56.5 54 78 66.0 56 88 72.0 58 89 73.5 55 84 69.5 52 86 69.0 54 78 66.0 47 65 56.0 48 76 62.0 47 77 62.0 48 76 62.0 48 75 61.5

03/22 53 81 67.0 64 89 76.5 58 86 72.0 55 84 69.5 52 82 67.0 54 78 66.0 47 68 57.5 44 71 57.5 49 77 63.0 50 77 63.5 49 75 62.0 48 76 62.0

03/23 60 88 74.0 53 84 68.5 49 84 66.5 48 81 64.5 46 81 63.5 48 73 60.5 47 70 58.5 45 79 62.0 46 77 61.5 51 78 64.5 50 79 64.5 48 77 62.5

03/24 51 84 67.5 53 83 68.0 50 81 65.5 48 80 64.0 48 70 59.0 47 69 58.0 45 79 62.0 44 76 60.0 51 78 64.5 49 81 65.0 49 78 63.5 47 71 59.0

03/25 51 84 67.5 49 81 65.0 47 81 64.0 49 70 59.5 48 68 58.0 44 79 61.5 45 77 61.0 46 75 60.5 47 80 63.5 52 80 66.0 51 77 64.0 47 75 61.0

03/26 49 82 65.5 46 80 63.0 47 71 59.0 47 65 56.0 43 76 59.5 45 73 59.0 45 76 60.5 45 78 61.5 47 80 63.5 49 75 62.0 48 75 61.5 46 76 61.0

03/27 46 81 63.5 50 70 60.0 48 63 55.5 42 76 59.0 45 73 59.0 45 76 60.5 47 80 63.5 44 80 62.0 48 77 62.5 47 78 62.5 49 76 62.5 48 75 61.5

03/28 48 75 61.5 53 63 58.0 43 75 59.0 46 73 59.5 44 76 60.0 45 81 63.0 45 81 63.0 46 74 60.0 49 77 63.0 51 79 65.0 50 78 64.0 47 81 64.0

03/29 52 63 57.5 48 76 62.0 46 71 58.5 44 76 60.0 45 81 63.0 45 79 62.0 45 73 59.0 42 76 59.0 43 77 60.0 49 75 62.0 44 77 60.5 45 81 63.0

03/30 46 78 62.0 52 71 61.5 46 76 61.0 46 82 64.0 44 80 62.0 46 76 61.0 44 75 59.5 45 79 62.0 48 83 65.5 50 80 65.0 50 78 64.0 49 74 61.5

03/31 51 70 60.5 51 76 63.5 45 82 63.5 45 80 62.5 45 75 60.0 44 69 56.5 45 78 61.5 48 87 67.5 51 87 69.0 52 85 68.5 49 82 65.5 45 74 59.5

Web Links Legend

10-Day Min/Max Forecast NR = Forecasted temperatures not recorded

Previous Days Min/Max Actuals 100 = Previous day actual temperatures in red and bolded indicate a record temperature for that date

Redding (RDD) Daily Air Temperatures (°F)

8 Days

D

A

T

E

Forecasted

4 Days 5 Days 6 Days

Actual

Previous Day Current Day 1 Day 2 Days 3 Days 7 Days 9 Days 10 Days

3
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

TCD N/A Shasta Power Plant N/A Sacramento CCR 56 09/21/2020 04/18/2021

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here Sacramento CCR 60 04/18/2021 05/17/2021

SPP N/A Spring Creek Power Plant N/A Sacramento SAC 57 05/17/2021 06/15/2021

KWK Sacramento River 0.8 miles downstream of Keswick Dam Click Here Sacramento SAC 55 06/15/2021 TBD

SAC Sacramento River 4.8 miles downstream of Keswick Dam Click Here Trinity DGC 56 09/15/2021 10/01/2021

CCR Sacramento River 9.7 miles downstream of Keswick Dam Click Here Trinity NFH 56 10/01/2021 12/31/2021

BSF Sacramento River 25 miles downstream of Keswick Dam Click Here

JLF Sacramento River 34 miles downstream of Keswick Dam Click Here

BND Sacramento River 41 miles downstream of Keswick Dam Click Here

RDB Sacramento River 58 miles downstream of Keswick Dam Click Here

IGO Clear Creek 7.3 miles downstream of Whiskeytown Dam Click Here

LWS Trinity River 1.1 miles downstream of Lewiston Dam Click Here Notes

DGC Trinity River 19 miles downstream of Lewiston Dam Click Here

NFH Trinity River 38 miles downstream of Lewiston Dam Click Here 1 Distances are approximate

Station Details Water Right Temperature Control Points

45

49

53

57

61

65

69

73

77

81

85

48

49

50

51

52

53

54

55

56

57

58

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Mean Daily Temperatures

TCD KWK SAC CCR BSF RDD (Air)

4
Updated 03/30/2022 at 1318

Latest Profile Date: 03/30/2022

Page Description

6 - Shasta Lake Isothermobaths Plot

7 - Shasta Lake Cold Water Pool Volume ≤52°F

8 - Shasta Lake Cold Water Pool Volume ≤50°F

9 - Shasta Lake Cold Water Pool Volume ≤48°F

10 - Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

11 - Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

12 - Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

13 - Shasta Lake Cold Water Pool Comparison by Year

Shasta Lake Isothermobaths & Cold Water Pool Statistics

2022

5
6

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Isothermobaths Plot - 2022

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
7

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F

Avg (1998-2021) 2014 2015 2016 2019 2022
8

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F

Avg (1998-2021) 2014 2015 2016 2019 2022
9

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F

Avg (1998-2021) 2014 2015 2016 2019 2022
10

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (1998-2021)

2022 95 90 75 50 25 10 5
11

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (1998-2021)

2022 95 90 75 50 25 10 5
12

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (1998-2021)

2022 95 90 75 50 25 10 5
Mar-30

2022 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

1998 2140 1729 602 1490 158 138 60 119

1999 2244 1984 1592 1940 165 158 160 161

2000 1744 1380 251 1125 129 110 25 88

2001 1692 1501 1240 1478 125 120 124 123

2002 2339 2117 879 1779 172 169 88 143

2003 1714 1165 457 1112 126 93 46 88

2004 1826 1798 338 1321 135 143 34 104

2005 1372 1029 269 890 101 82 27 70

2006 2465 2502 1594 2187 182 199 160 180

2007 1798 1709 893 1467 132 136 89 119

2008 1605 720 475 933 118 57 48 74

2009 908 786 734 809 67 63 74 68

2010 2470 1551 906 1642 182 124 91 132

2011 2556 2658 1138 2118 188 212 114 171

2012 2408 1601 480 1496 177 128 48 118

2013 1772 1467 900 1380 131 117 90 113

2014 402 -52 -159 204 30 -4 -16 17

2015 467 217 -377 353 34 17 -38 30

2016 1989 1844 235 1356 146 147 24 106

2017 2482 1454 1236 1724 183 116 124 141

2018 1596 1081 190 956 118 86 19 74

2019 2561 1620 1315 1832 189 129 132 150

2020 2234 788 131 1051 165 63 13 80

2021 376 78 -73 176 28 6 -7 14

2022 0 0 0 0 0 0 0 0

∆ TAF % ∆

Shasta Lake Cold Water Pool Comparison by Year (for Specified Date)

Historic - Current (Historic - Current) / Current

13
Updated 03/04/2022 at 0848

Latest Profile Date: 03/03/2022

Page Description

15 - Trinity Lake Isothermobaths Plot

16 - Trinity Lake Cold Water Pool Volume ≤52°F

17 - Trinity Lake Cold Water Pool Volume ≤50°F

18 - Trinity Lake Cold Water Pool Volume ≤48°F

19 - Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

20 - Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

21 - Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

22 - Trinity Lake Cold Water Pool Comparison by Year

Trinity Lake Isothermobaths & Cold Water Pool Statistics

2022

14
15

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Isothermobaths Plot - 2022

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
16

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F

Avg (2000-2021) 2014 2015 2016 2019 2022
17

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F

Avg (2000-2021) 2014 2015 2016 2019 2022
18

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F

Avg (2000-2021) 2014 2015 2016 2019 2022
19

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (2000-2021)

2022 95 90 75 50 25 10 5
20

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (2000-2021)

2022 95 90 75 50 25 10 5
21

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (2000-2021)

2022 95 90 75 50 25 10 5
Mar-03

2022 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

2000 1321 1282 1168 1257 168 163 148 159

2001 914 910 903 909 116 115 115 115

2002 969 969 954 964 123 123 121 122

2003 1162 1158 1060 1127 147 147 134 143

2004 1307 1307 1307 1307 166 166 166 166

2005 904 729 637 757 115 92 81 96

2006 1322 1322 1222 1288 168 168 155 163

2007 1117 1117 930 1054 142 142 118 134

2008 702 702 702 702 89 89 89 89

2009 302 302 302 302 38 38 38 38

2010 390 390 390 390 49 49 49 49

2011 1111 1111 1105 1109 141 141 140 141

2012 1170 1170 1170 1170 148 148 148 148

2013 1202 1202 1155 1186 152 152 146 150

2014 418 418 280 372 53 53 36 47

2015 301 193 90 195 38 24 11 25

2016 185 185 174 181 23 23 22 23

2017 1087 1087 1029 1068 138 138 130 135

2018 1012 1012 1012 1012 128 128 128 128

2019 954 954 954 954 121 121 121 121

2020 1236 1236 984 1152 157 157 125 146

2021 485 485 485 485 61 61 61 61

2022 0 0 0 0 0 0 0 0

Trinity Cold Water Pool Comparison by Year (for Specified Date)

∆ TAF % ∆

Historic - Current (Historic - Current) / Current

22
Updated 03/01/2022 at 1313

Latest Profile Date: 03/01/2022

Page Description

24 - Whiskeytown Lake Isothermobaths Plot

25 - Whiskeytown Lake Cold Water Pool Volume ≤60°F

26 - Whiskeytown Lake Cold Water Pool Volume ≤58°F

27 - Whiskeytown Lake Cold Water Pool Volume ≤56°F

28 - Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances

29 - Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances

30 - Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances

31 - Whiskeytown Lake Cold Water Pool Comparison by Year

Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

2022

23
24

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Isothermobaths Plot - 2022

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
25

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F

Avg (2000-2021) 2014 2015 2016 2019 2022
26

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F

Avg (2000-2021) 2014 2015 2016 2019 2022
27

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F

Avg (2000-2021) 2014 2015 2016 2019 2022
28

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances (2000-2021)

2022 95 90 75 50 25 10 5
29

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances (2000-2021)

2022 95 90 75 50 25 10 5
30

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances (2000-2021)

2022 95 90 75 50 25 10 5
Mar-01

2022 ≤60° ≤58° ≤56° Abs. Avg. ≤60° ≤58° ≤56° Abs. Avg.

2000 -0.2 -0.2 -0.2 0.2 -0.1 -0.1 -0.1 0.1

2001 12.0 11.1 8.6 10.6 5.8 5.4 4.2 5.1

2002 -0.9 -0.9 -0.9 0.9 -0.4 -0.4 -0.4 0.4

2003 -0.8 -0.8 -0.8 0.8 -0.4 -0.4 -0.4 0.4

2004 -0.7 -0.7 -0.7 0.7 -0.3 -0.3 -0.3 0.3

2005 0.6 0.6 0.6 0.6 0.3 0.3 0.3 0.3

2006 -0.7 -0.7 -0.7 0.7 -0.3 -0.3 -0.3 0.3

2007 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0

2008 2.1 2.1 2.1 2.1 1.0 1.0 1.0 1.0

2009 4.7 4.7 4.7 4.7 2.3 2.3 2.3 2.3

2010 8.2 8.2 8.2 8.2 4.0 4.0 4.0 4.0

2011 -1.2 -1.2 -1.2 1.2 -0.6 -0.6 -0.6 0.6

2012 -19.0 -20.8 -24.3 21.4 -9.2 -10.1 -11.8 10.4

2013 -1.4 -1.4 -1.4 1.4 -0.7 -0.7 -0.7 0.7

2014 3.6 3.6 3.6 3.6 1.7 1.7 1.7 1.7

2015 -0.9 -0.9 -0.9 0.9 -0.4 -0.4 -0.4 0.4

2016 19.7 19.7 19.7 19.7 9.5 9.5 9.5 9.5

2017 12.7 12.7 12.7 12.7 6.2 6.2 6.2 6.2

2018 -0.5 -0.5 -0.5 0.5 -0.3 -0.3 -0.3 0.3

2019 14.5 14.5 14.5 14.5 7.0 7.0 7.0 7.0

2020 -0.8 -0.8 -0.8 0.8 -0.4 -0.4 -0.4 0.4

2021 0.8 0.8 0.8 0.8 0.4 0.4 0.4 0.4

2022 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

∆ TAF % ∆

Whiskeytown Cold Water Pool Comparison by Year (for Specified Date)

Historic - Current (Historic - Current) / Current

31